Crossfire Injection Running Rough
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Joined: Mar 2007
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From: Tampa Florida
Cam and lifters appear to be working just fine. Lifters only have 20,000 miles on them and were operating well.
When I took the heads to the shop, the owner said he could smell the bad gas causing the buildup. Fuel was left in the tank without stabilizer for nine months when I had the car towed in for transmission rebuild and sat again as I was out of town. I may know by the end of next week how well things are going.
I have an ASE certified Corvette pro who will help me put this engine back together...hey, I can take almost anything apart. Actually I have a lot of parts that made up something at one time.
When I took the heads to the shop, the owner said he could smell the bad gas causing the buildup. Fuel was left in the tank without stabilizer for nine months when I had the car towed in for transmission rebuild and sat again as I was out of town. I may know by the end of next week how well things are going.
I have an ASE certified Corvette pro who will help me put this engine back together...hey, I can take almost anything apart. Actually I have a lot of parts that made up something at one time.
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
Cam and lifters appear to be working just fine. Lifters only have 20,000 miles on them and were operating well.
When I took the heads to the shop, the owner said he could smell the bad gas causing the buildup. Fuel was left in the tank without stabilizer for nine months when I had the car towed in for transmission rebuild and sat again as I was out of town. I may know by the end of next week how well things are going.
I have an ASE certified Corvette pro who will help me put this engine back together...hey, I can take almost anything apart. Actually I have a lot of parts that made up something at one time.
When I took the heads to the shop, the owner said he could smell the bad gas causing the buildup. Fuel was left in the tank without stabilizer for nine months when I had the car towed in for transmission rebuild and sat again as I was out of town. I may know by the end of next week how well things are going.
I have an ASE certified Corvette pro who will help me put this engine back together...hey, I can take almost anything apart. Actually I have a lot of parts that made up something at one time.
Spare parts after reassemble are bad though...
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From: Tampa Florida
Will attempt to take an even closer look at the cam next week. Pulling lifters has revealed nothing out of the ordinary and am really not expecting a cam problem especially with the amount of caking on the valves.
Worse than parts left over...maybe...is when one is finishing the reassemble and the part needed next is missing...where is that thing?..Oh...just get another part...what the hey!
Actually everything is labeled and in plastic bags. Rocker arms push rods are all in order and kept together.
The manual I put together is very detailed and just hope I don't get lost on the way putting the pieces back together. It has been many years (if ever) since I have gone this far on a repair.
Worse than parts left over...maybe...is when one is finishing the reassemble and the part needed next is missing...where is that thing?..Oh...just get another part...what the hey!
Actually everything is labeled and in plastic bags. Rocker arms push rods are all in order and kept together.
The manual I put together is very detailed and just hope I don't get lost on the way putting the pieces back together. It has been many years (if ever) since I have gone this far on a repair.
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From: Tampa Florida
Before and after pictures of valve job and painting head with GM Corporate Blue.
Waiting for the arrival of the gasket set which is here somewhere in Tampa since 5:34 AM and sat most of two days in Orlando. I could have gone and picked it up yesterday.
Waiting for the arrival of the gasket set which is here somewhere in Tampa since 5:34 AM and sat most of two days in Orlando. I could have gone and picked it up yesterday.
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From: Tampa Florida
Coming Together Again
The guys doing the valve job state that the valves were sticking and the cause of my issues. Seemed to get worse as the engine heated up. Anyway, I am putting the engine back together and nearly completed the process yesterday. Here is what it looks like as I have to put the exhaust manifold back on the RH side as well as a couple of other things before I start the engine hopefully today.
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Melting Slicks
Joined: Jul 2005
Posts: 2,740
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From: Aurora Ontario
The guys doing the valve job state that the valves were sticking and the cause of my issues. Seemed to get worse as the engine heated up. Anyway, I am putting the engine back together and nearly completed the process yesterday. Here is what it looks like as I have to put the exhaust manifold back on the RH side as well as a couple of other things before I start the engine hopefully today.
Jim
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From: Tampa Florida
The stems were all coated but the front cylinders where the source of the backfire. All is good now except I have yet to reattach the RH exhaust manifold and of course an issue has arisen. My goal was to start the engine today but looks like tomorrow is my best hope.
It was very cold here in Florida (46 degrees in the early AM) so we all stayed inside until we warm up again.
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From: Tampa Florida
Engine Start
Was able to put the final parts in place, new plugs, connect battery and started engine. Chugged along just like it did before I took the intake manifold off and coded MAP sensor 33. Not sure what my next step is but will keep you posted.
Melting Slicks
Joined: Jul 2005
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From: Aurora Ontario
What the F@@k! That makes no sense!
Did you use the right plenum gasket?
Take a reading off the port the map sensor is on. Are you getting a constant 20? Is the port plugged? Is the hose to long? Does the MAP work?
Lastly have the IAC's reset? You have to drive it for them to.
Jim
Did you use the right plenum gasket?
Take a reading off the port the map sensor is on. Are you getting a constant 20? Is the port plugged? Is the hose to long? Does the MAP work?
Lastly have the IAC's reset? You have to drive it for them to.
Jim
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From: Tampa Florida
Timing
Must have been one cog off. TDC lined up with #2 and only had to twist dizzy to get to#1 and set timing. Started right up and ran very smoothly. Very nice...but...coolant leak and yet to locate the source.
On the right path.
On the right path.
Melting Slicks
Joined: Jul 2005
Posts: 2,740
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From: Aurora Ontario
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From: Tampa Florida
Test Drive Today
First test drive today. Ran very well.
Coolant leak was from the rear the intake manifold to the shutoff and reattached. Still have a very small leak from the threads around the CTS.
Got an oxygen sensor code 44 on the drive and that was after tuning the TBIs. Not sure what to think but may recheck to see if TBIs remain in balance and check fuel pressure.
Mostly seems like I am tying up loose ends now. Not pleased that I got the 44 code and seems like the only thing really holding me back.
Coolant leak was from the rear the intake manifold to the shutoff and reattached. Still have a very small leak from the threads around the CTS.
Got an oxygen sensor code 44 on the drive and that was after tuning the TBIs. Not sure what to think but may recheck to see if TBIs remain in balance and check fuel pressure.
Mostly seems like I am tying up loose ends now. Not pleased that I got the 44 code and seems like the only thing really holding me back.
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Joined: Mar 2007
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From: Tampa Florida
Final Words
Sensor was an ACDelco AFS22 (already tried code clearing and just came back again) probably should have been a AFS21. Put the old sensor back in and no codes.
Final Word
SWEET!
I am done here. Thank you all!
Final Word
SWEET!
I am done here. Thank you all!
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario